Tool and method for keeping fully opening of wax type thermostat

Abstract

The invention discloses a tool and a method for keeping full opening of a wax type thermostat. The wax-type thermostat is used for keeping the wax-type thermostat in a full-opening state. The wax-typethermostat comprises a support, a main valve, a main valve push rod, a main valve spring and paraffin, and the tool is a U-shaped structure formed by bending a rectangular thin steel plate. The toolhas the advantages that the structure is simple, the preparation is easy, the reutilization can be realized, and the operation method is rapid and convenient.

Description

Technical field [0001] The invention relates to the field of engine manufacturing, in particular to a tool and method for keeping a wax type thermostat fully open. Background technique [0002] Thermostat, also called thermostat, is an automatic temperature regulating device, containing temperature sensing components, which can automatically change the opening and closing state of the valve according to the temperature of the coolant, thereby changing the circulation path of the engine coolant and the flow into the radiator. The coolant flow rate is used to adjust the heat dissipation capacity of the cooling system to ensure that the engine works in a suitable temperature range. [0003] The thermostats currently in use are mainly wax thermostats, whose control principle is the thermal expansion and contraction principle of the paraffin wax inside the temperature sensing body. When the coolant temperature is lower than the specified value, the fine paraffin in the temperature sens...

AI Technical Summary

Problems solved by technology

[0010] There are four ways to realize this step: 1. Use pliers to overcome the resistance of the main spring at room temperature and directly push the main valve of the thermostat along the direction of the push rod to the fully open position. The disadvantage of this method is that the spring resistance is large, and it is not easy to ensure that the thermostat It is always in the fully open position, which is easy to cause rework, and it is difficult for one person to complete the follow-up operation independently; 2. Soak the thermostat in a heating container and boil it with water for 5 minutes to make the thermostat fully open naturally. The disadvantage of this method is that it is time-consuming long, and the follow-up operation time is required to be as short as possible to ensure that the thermostat is always in the fully open position, and it is easy to cause rework; 3. Use diagonal pliers to break the main spring, and then push the main valve to the fully open position. The disadvantage is that the spring is hard, the gap is tight, and the operation is difficult; 4. Use argon arc welding to burn off the main spring. This method is the most commonly used method at present. Due to heat conduction, the thermostat has also reached the fully open position. The disadvantage is that you need to be very careful during operation, otherwise it is easy to burn, especially be careful not to burn through the temperature-sensitive body, causing paraffin to catch fire or even explode to hurt people. The device will cause permanent damage and affect the normal use of the second time

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